Self-propelled riding tractor



FIG. 1 is a left side elevation view of self-propelled riding tractor showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a rear elevational view thereof; and

FIG. 7 is a top, front and side perspective view thereof.

The cross hatch pattern shown in FIGS. 1 and 3 is understood to repeat throughout the indicated area as shown in FIG. 7. 

The ornamental design for a self-propelled riding tractor, as shown. 